/*
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 * and open the template in the editor.
 */
package aplets;

import controlador.CtrlVista;
import excepciones.PersistenciaException;
import excepciones.UsuarioException;
import java.io.IOException;
import java.io.PrintWriter;
import java.security.NoSuchAlgorithmException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import negocio.Complejo;
import negocio.Usuario;


/**
 *
 * @author diego
 */
public class login extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    private CtrlVista vista;
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException, NoSuchAlgorithmException {
        response.setContentType("text/html;charset=UTF-8");
        String url = "index.jsp";
        
        try{
            this.vista = new CtrlVista();
            HttpSession unaSesion = request.getSession(true);
            String user = request.getParameter("username");
            String pass =request.getParameter("pass"); 
            
            Usuario unUsuario = this.vista.validarUsuario(user, pass);//unComplejo.validarUsuario(user, pass);
            if(unUsuario != null){
                 url = "app/principal.jsp";
                 unaSesion.setAttribute("unCliente", unUsuario);
             }
            
        }
        catch(PersistenciaException e){
           if(e.getErrcod() == 1){
                url = "./index.jsp?err="+e.getErrcod()+"&msg="+e.getMessage();
            }
        }
        catch(UsuarioException e){
            if(e.getErrcod() == 1){
                url = "./index.jsp?err="+e.getErrcod()+"&msg="+e.getMessage();
            }
        }
         catch(Exception e){
           url = "./index.jsp?err="+"Error de Inicializacion"+e.getMessage();
        }
        finally {
            response.sendRedirect(url);
        }    
        
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        try {
            processRequest(request, response);
        } catch (NoSuchAlgorithmException ex) {
            Logger.getLogger(login.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        try {
            processRequest(request, response);
        } catch (NoSuchAlgorithmException ex) {
            Logger.getLogger(login.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
